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  Method and apparatus for reducing femoral fracturesUSPTO Application #: 20060064164Title: Method and apparatus for reducing femoral fractures Abstract: A method and apparatus for reducing a hip fracture utilizing a minimally invasive procedure. A femoral implant achieves intramedullary fixation as well as fixation into the femoral head. To optimally position the femoral implant, a minimally invasive incision is aligned with the greater trochanter and the wound is developed to expose the greater trochanter. Various reamers are utilized to prepare a cavity in the femur extending from the greater trochanter into the femoral head and further extending from the greater trochanter into the intramedullary canal of the femur. (end of abstract) Agent: Zimmer Technology - Baker & Daniels - Fort Wayne, IN, US Inventors: Sarah L. Thelen, Antony J. Lozier, Nicolas J. Pacelli USPTO Applicaton #: 20060064164 - Class: 623016110 (USPTO) Related Patent Categories: Prosthesis (i.e., Artificial Body Members), Parts Thereof, Or Aids And Accessories Therefor, Implantable Prosthesis, Bone The Patent Description & Claims data below is from USPTO Patent Application 20060064164. Brief Patent Description - Full Patent Description - Patent Application Claims
CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit under Title 35, U.S.C. .sctn. 119(e) of U.S. Provisional Patent Application Ser. No. 60/621,487, entitled Transformation Technology Hip Fracture Fixation Device and Method for the Treatment of Hip Fractures, filed Oct. 22, 2004, and U.S. Provisional Patent Application Ser. No. 60/654,481, entitled Method and Apparatus for Reducing Femoral Fractures, filed Feb. 18, 2005. [0002] This application is a continuation-in-part of prior co-pending U.S. patent application Ser. No. 11/061,898, filed Feb. 18, 2005, which is a continuation-in-part of prior U.S. patent application Ser. No. 10/358,009, filed Feb. 4, 2003, which is a continuation-in-part of prior U.S. patent application Ser. No. 10/266,319, filed Oct. 8, 2002, which is a continuation-in-part of prior U.S. patent application Ser. No. 10/155,683, filed May 23, 2002, which is a continuation-in-part of prior U.S. patent application Ser. No. 09/520,351, filed Mar. 7, 2000, now U.S. Pat. No. 6,447,514. [0003] This application hereby expressly incorporates by reference herein the entire disclosures of U.S. Provisional Patent Application Ser. No. 60/654,481, filed Feb. 18, 2005; U.S. Provisional Patent Application Ser. No. 60/621,487, filed Oct. 22, 2004; U.S. patent application Ser. No. 11/061,898, filed Feb. 18, 2005; U.S. patent application Ser. No. 10/358,009, filed Feb. 4, 2003; U.S. patent application Ser. No. 10/266,319, filed Oct. 8, 2002; U.S. patent application Ser. No. 10/155,683, filed May 23, 2002; U.S. patent application Ser. No. 09/520,351, filed Mar. 7, 2000, now U.S. Pat. No. 6,447,514; and the Zimmer.RTM. MIS.TM. Hip Fixation Device Surgical Technique brochure, .COPYRGT.2004. BACKGROUND [0004] 1. Field of the Invention [0005] The present invention relates to a method and apparatus for treating hip fractures, and, more particularly, to a method and apparatus for reducing femoral fractures utilizing a minimally invasive procedure. [0006] 2. Description of the Prior Art [0007] Current procedures utilized to reduce hip fractures generally utilize a side plate and hip screw combination, i.e., a bone plate affixed to a lateral aspect of the femur and having a hip screw operably connected thereto, with the hip screw extending into the femoral head. To properly implant the bone plate and hip screw, a surgeon must dissect an amount of muscle to expose the femur and operably attach the bone plate to the femur. In particular, the bone plate and hip screw combination surgery typically requires an incision of about 10-12 cm through the skin and muscle, for example, the quadriceps, to expose the femur. While this approach provides surgeons with an excellent view of the femoral bone surface, a more minimally invasive procedure is desired. SUMMARY [0008] The present invention provides an improved method and apparatus for reducing a hip fracture utilizing a minimally invasive procedure. A femoral implant in accordance with the present invention achieves intramedullary fixation as well as fixation into the femoral head. To optimally position the femoral implant, a minimally invasive incision is aligned with the greater trochanter and the wound is developed to expose the greater trochanter. Various reamers in accordance with the present invention are utilized to prepare a cavity in the femur extending from the greater trochanter into the femoral head and further extending from the greater trochanter into the intramedullary canal of the femur. [0009] In one form thereof, the present invention provides an orthopedic implant for implantation into a cavity formed within an anatomical structure including a bag including a fill access providing access to an interior of the bag; and a structural support disposed at least partially within the bag. [0010] In another form thereof, the present invention provides an orthopedic implant assembly for implanting an orthopedic implant into a cavity formed within an anatomical structure including an orthopedic implant, the orthopedic implant including a bag including a fill access providing access to an interior of the bag; and a structural support disposed at least partially within the bag, the structural support including first engagement structure; and an implant insertion tool including second engagement structure engageable with the first engagement structure, the implant insertion tool including at least one passage which is placed in fluid communication with the fill access of the bag upon engagement of the first engagement structure with the second engagement structure. BRIEF DESCRIPTION OF THE DRAWINGS [0011] The above mentioned and other features and objects of this invention, and the manner of attaining them, will become more apparent and the invention itself will be better understood by reference to the following description of exemplary embodiments of the invention taken in conjunction with the accompanying drawings, wherein: [0012] FIG. 1 is a perspective view of a hip joint area of a human patient showing the femur and a portion of the pelvis in dashed lines; [0013] FIG. 2 is a perspective view of a hip joint area of the human patient of FIG. 1, further illustrating the use of an alignment guide and fluoroscope; [0014] FIG. 3 is a perspective view of a hip joint area of the human patient of FIG. 1, further illustrating the underlying muscles and the greater trochanter access; [0015] FIG. 4 is a perspective view of a plunge reamer inserted into the femur of the human patient of FIG. 1; [0016] FIG. 5 is a perspective view of a plunge reamer according to an alternative embodiment; [0017] FIG. 6 is a perspective view of a straight reamer; [0018] FIG. 7 is an end view of the distal end of the straight reamer of FIG. 6, taken along line 7-7 of FIG. 6; [0019] FIG. 8 is a partial sectional view through the straight reamer of FIG. 6, taken along line 8-8 of FIG. 6; [0020] FIG. 9 is a partial perspective view of the straight reamer of FIG. 6, further illustrating use of the straight reamer to create the access in the greater trochanter; Continue reading... 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